What is the primary purpose of emergency lighting in egress?

• A. To create ambient lighting for non-emergency times.
• B. To illuminate exit routes during power outages, ensuring safe movement to exits.
• C. To accent architectural features.
• D. To provide general lighting in non-exit areas during outages.

Answer: (B)

Emergency lighting in egress is designed to light the path to safety when normal lighting fails. It makes exit routes, doors, stairs, and exit signs clearly visible so people can locate and move toward an exit without confusion or tripping hazards. It stays on for a defined duration during outages, supporting an orderly evacuation rather than merely providing ambient or decorative lighting or illuminating non-exit areas.